When Los Dos Amigos first opened 32 years ago, the sign above the building was red. The color has washed away over the years, and now you can barely read the name of the place. Los Dos Amigos is one of many restaurants on Washington Avenue that were built to serve the nearby Mexican barrio. The neighborhood has changed, but the humble little eatery still serves a disappearing variety of home-cooked Tex-Mex. Breakfast at Los Dos Amigos features hand-cut potatoes, homemade flour tortillas and silky refried beans. Don't embarrass yourself by asking if the tortillas and beans are made with lard. Of course they are. Breakfast tacos are 99 cents, and the breakfast specials are $3.25 until 10 a.m. For a true taste of yesteryear, order the cheese enchiladas topped with two fried eggs and raw onions.